<!doctype html>
<html lang="zh-CN">
  <head>
    <!-- 必须的 meta 标签 -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
	<link rel="stylesheet" href="css/bootstrap.min.css" >
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    <title>Hello, world!</title>
  </head>
  <body>
    <div id="carouselExampleControls" class="carousel slide" data-ride="carousel">
      <div class="carousel-inner">
        <div class="carousel-item active">
          <img src="img/mei1.jpg" class="d-block w-100" alt="">
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        <div class="carousel-item">
          <img src="img/mei2.jpg" class="d-block w-100" alt="...">
        </div>
        <div class="carousel-item">
          <img src="img/mei3.jpg" class="d-block w-100" alt="...">
        </div>
      </div>
     <button class="carousel-control-prev" type="button" data-target="#carouselExampleControls" data-slide="prev">
        <span class="carousel-control-prev-icon" aria-hidden="true"></span>
        <span class="sr-only">Previous</span>
      </button>
      <button class="carousel-control-next" type="button" data-target="#carouselExampleControls" data-slide="next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
        <span class="sr-only">Next</span>
      </button>
    </div>
  </body>
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